Add scripts to customizer for wordpress

scripts.php

<?php

/* Customiser script */
add_action( 'customize_register', 'custom_editor' );
function custom_editor( $wp_customize ) {

    // Analytics section
    $wp_customize->add_section('analytics_section', array(
        'title'       => __( 'Analytics', 'tuesday' ),
        'description' => __( 'Enable tracking and analytics by placing your script tags in the correct location. <small><strong>Note:</strong> All scripts must be self-containing &lt;script&gt;&lt;/script&gt;, otherwise they will just print the code onto the website.</small>', 'tuesday' ),
        'priority'    => 160,
        'transport'   => 'postMessage',
    ));

    // head scripts
    $wp_customize->add_setting('analytics_head', array(
        'default'    => '',
        'capability' => 'edit_theme_options',
    ));

    $wp_customize->add_control('analytics_head', array(
        'label'       => __( 'Scripts in the &lt;head&gt;', 'tuesday' ),
        'description' => __( 'Place script tags in the &lt;head&gt;', 'tuesday' ),
        'type'        => 'textarea',
        'input_attrs' => [
          'data-name' => __( 'Head', 'tuesday' ),
          'placeholder' => __( '&lt;script&gt;google.analytic.manager...', 'tuesday' ),
        ],
        'section'     => 'analytics_section',
        'settings'    => 'analytics_head',
    ));

    $wp_customize->add_setting('analytics_footer', array(
        'default'    => '',
        'capability' => 'edit_theme_options',
    ));

    $wp_customize->add_control('analytics_footer', array(
        'label'       => __( 'Scripts in the &lt;footer&gt;', 'tuesday' ),
        'description' => __( 'Place scripts in the footer', 'tuesday' ),
        'type'        => 'textarea',
        'input_attrs' => [
          'data-name' => __( 'Footer', 'tuesday' ),
          'placeholder' => __( '&lt;script&gt;RUM.manager...', 'tuesday' ),
        ],
        'section'     => 'analytics_section',
        'settings'    => 'analytics_footer',
    ));
}